:root{color-scheme:dark;--ink:#f5f2ea;--muted:#aeb3be;--line:rgba(255,255,255,.1);--panel:rgba(20,24,34,.72);--gold:#f2c879;--mint:#8ee8ca;--bg:#0d1018;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);min-height:100vh}.aurora{position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 78% 3%,rgba(81,117,168,.25),transparent 30%),radial-gradient(circle at 12% 35%,rgba(42,128,107,.18),transparent 28%),linear-gradient(180deg,#10141f 0,#0c0f16 58%,#11131a 100%);z-index:-1}.topbar{height:76px;padding:0 clamp(18px,5vw,72px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:rgba(10,13,20,.7);backdrop-filter:blur(20px);position:sticky;top:0;z-index:20}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(242,200,121,.5);border-radius:12px;color:var(--gold);font-family:serif;font-size:19px}.brand b,.brand small{display:block}.brand small{font-size:9px;letter-spacing:.22em;color:#818999;margin-top:3px}.topbar nav{display:flex;gap:8px;align-items:center}.topbar nav a,.topbar button,.hero-actions a,dialog button{color:var(--ink);border:0;background:transparent;text-decoration:none;padding:10px 14px;border-radius:999px;font:inherit;cursor:pointer}.topbar nav a:hover,.topbar button:hover{background:rgba(255,255,255,.07)}main{width:min(1240px,calc(100% - 36px));margin:auto}.hero{min-height:470px;display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:center;padding:76px 4vw 64px}.eyebrow{font-size:11px;letter-spacing:.27em;color:var(--mint)}h1{font-family:"Noto Serif SC",STSong,serif;font-weight:500;font-size:clamp(42px,6vw,78px);line-height:1.08;margin:20px 0}h1 em{font-style:normal;color:var(--gold)}.hero-copy>p{font-size:18px;line-height:1.8;color:var(--muted);max-width:660px}.hero-actions{display:flex;gap:12px;margin-top:30px}.hero-actions a{border:1px solid var(--line)}.primary{background:linear-gradient(135deg,#e6bd70,#bf8d46)!important;color:#16120d!important;font-weight:700!important}.journey{border-left:1px solid var(--line);padding-left:34px;display:flex;flex-direction:column}.journey span{padding:17px 0;border-bottom:1px solid var(--line);color:#c6cad2}.journey span:first-child{color:var(--gold)}.layout{display:grid;grid-template-columns:240px minmax(0,800px);justify-content:center;gap:28px;align-items:start;padding-bottom:100px}.toc-card,.guide-card{border:1px solid var(--line);background:var(--panel);box-shadow:0 24px 80px rgba(0,0,0,.25);backdrop-filter:blur(18px)}.toc-card{position:sticky;top:96px;border-radius:20px;padding:20px}.toc-card>p{margin:0 0 10px;font-size:12px;letter-spacing:.12em;color:var(--muted)}.progress{height:3px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden;margin-bottom:18px}.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--mint))}.toc-card nav{display:grid;gap:4px}.toc-card nav a{color:#979eaa;text-decoration:none;font-size:13px;line-height:1.35;padding:7px 8px;border-radius:8px}.toc-card nav a:hover,.toc-card nav a.active{color:var(--ink);background:rgba(255,255,255,.06)}.toc-card small{display:block;color:#68707d;margin:18px 8px 0;line-height:1.5}.guide-card{border-radius:28px;padding:clamp(28px,6vw,72px);min-height:600px}.guide-card h1{font-size:clamp(34px,5vw,54px);margin:0 0 34px}.guide-card h2{font-family:"Noto Serif SC",STSong,serif;font-size:30px;font-weight:500;margin:64px 0 20px;padding-top:12px}.guide-card p,.guide-card li{color:#c8ccd4;line-height:1.9;font-size:16px}.guide-card strong{color:#fff}.guide-card a{color:var(--mint);text-underline-offset:4px}.guide-card blockquote{margin:28px 0;padding:18px 22px;border-left:3px solid var(--gold);background:rgba(242,200,121,.07);border-radius:0 14px 14px 0}.guide-card blockquote p{margin:0;color:#e4dccb}.guide-card img{display:block;width:100%;height:auto;margin:28px 0;border-radius:16px;border:1px solid var(--line);box-shadow:0 20px 55px rgba(0,0,0,.28)}.guide-card code{font-family:"SFMono-Regular",Consolas,monospace;font-size:.9em;color:#b4f1dc;background:rgba(51,181,148,.1);padding:.15em .4em;border-radius:5px}.guide-card ul,.guide-card ol{padding-left:1.4em}.loading{color:var(--muted)}dialog{width:min(1000px,calc(100% - 30px));height:min(780px,calc(100vh - 30px));padding:0;border:1px solid var(--line);border-radius:24px;background:#141925;color:var(--ink);box-shadow:0 35px 120px #000}dialog::backdrop{background:rgba(4,7,11,.8);backdrop-filter:blur(10px)}.editor-shell{height:100%;display:grid;grid-template-rows:auto auto 1fr auto;padding:24px;gap:14px}.editor-shell header,.editor-shell footer{display:flex;align-items:center;justify-content:space-between;gap:10px}.editor-shell header span{font-size:10px;letter-spacing:.2em;color:var(--mint)}.editor-shell h2{margin:5px 0 0}.editor-shell>p{margin:0;color:var(--muted)}textarea{resize:none;width:100%;min-height:0;background:#0b0f17;border:1px solid var(--line);border-radius:14px;color:#e9edf4;padding:18px;font:14px/1.7 Consolas,monospace;outline:none}textarea:focus{border-color:rgba(142,232,202,.55)}.editor-shell footer{justify-content:flex-end}.editor-shell footer span{margin-right:auto;color:var(--muted);font-size:13px}.icon-button{font-size:25px!important;padding:5px 12px!important}@media(max-width:780px){.topbar{height:64px;padding:0 14px}.brand small{display:none}.topbar nav a{display:none}.topbar nav a:first-child{display:inline-flex}.topbar nav a,.topbar button{padding:8px 10px;font-size:13px}main{width:min(100% - 20px,680px)}.hero{display:block;min-height:auto;padding:54px 12px 42px}.hero-copy>p{font-size:16px}.journey{margin-top:42px;padding-left:20px}.layout{display:block;padding-bottom:45px}.toc-card{position:relative;top:auto;margin-bottom:12px;border-radius:16px}.toc-card nav{display:flex;overflow:auto}.toc-card nav a{white-space:nowrap}.guide-card{border-radius:18px;padding:28px 22px}.guide-card h2{font-size:25px;margin-top:48px}.guide-card p,.guide-card li{font-size:15px}.editor-shell{padding:16px}.editor-shell>p{font-size:13px}.editor-shell footer{flex-wrap:wrap}.editor-shell footer span{width:100%}}